Although the 2020 Chevy Silverado is not a heavy-duty truck, it can still get a lot of work done in terms of towing and payload. It is important to remember, however, that these values will depend on a lot of different factors, including the configuration you choose, the engine you go with, and whether or not you opt for the towing package. Going into each specific option and the towing and payload for them would be excessive, so here are some examples of what you can get and what to expect with the Silverado.
In terms of towing, a lot depends on the configuration and trim you choose, as well as the engine that you go with. For the best towing possible, you will definitely want the available towing package with the Silverado, and you should choose the 6.2L V8 engine. If you choose the double cab with a standard bed, and the RST trim with 4x4 and 20-inch wheels, then you can get a maximum towing potential of 13,400 lbs.
Even if you do not go with that setup, however, you can still get great towing. For example, the High Country trim, which focuses on comfort and luxury, with the 6.2L engine, can get up to 12,000 lbs of towing. Even starting off with the basic Work Truck trim, if you choose the available 5.3L V8 engine, you still get up to 10,000 lbs of towing capacity. So you have a lot to work with when it comes to which configuration is right for your needs.
In terms of payload, the cab size and bed length, as well as the engine that you choose, will all play a large role in dictating your maximum payload. Choosing a regular cab with a long bed and two-wheel drive, with the 4.3L V6 engine, can get you a maximum payload of up to 2,250 lbs. If you want a crew cab with a standard bed and a heavier, more powerful engine, then your payload will be somewhat lower.